A safe and effective, ready-to-use choice for etching and cleaning concrete and masonry surfaces. DAICH Concrete Cleaner/Etcher is an organic, low odor, non-corrosive cleaning and etching formula that replaces extremely corrosive and hazardous concrete etching products such as Muriatic Acid. It also effectively cleans concrete and masonry surfaces for optimal bond of all DAICH Spreadable Stone floor coatings and other products.